Disambiguiate rand feature with dev dependancy

https://users.rust-lang.org/t/features-and-dependencies-cannot-have-the-same-name/47746

Author: sanket1729

Cargo.toml

@@ -24,7 +24,7 @@ serde = { version = "1.0", optional = true}
 
 [dev-dependencies]
 bitcoind = {version = "0.26.1", features=["22_0"]}
-rand = "0.8.4"
+actual-rand = { package = "rand", version = "0.8.4"}
 bitcoin = { version = "0.28", features = ["rand"]}
 
 [[example]]

tests/setup/test_util.rs

@@ -19,6 +19,7 @@
 
 use std::str::FromStr;
 
+use actual_rand as rand;
 use bitcoin::hashes::hex::ToHex;
 use bitcoin::hashes::{hash160, ripemd160, sha256, sha256d, Hash};
 use bitcoin::secp256k1;